For the process of writing in shorthand, see Stenography. For the prefix "Stego-" as used in taxonomy, see List of commonly used taxonomic affixes. The same image viewed by white, blue, green, and red lights reveals different hidden numbers. Steganography (/ˌstɛɡəˈnɒɡrəfi/ ⓘ STEG-ə-NOG-rə-fee) is the practice of representing information within another message or physical object, in such a manner t